Boring-machine.



v No. 657,835. Patented Sept. II, I900. A. Z. SAVAGE.

BORING MACHINE.

(Application filed Jan. 31, 1900.)

(No Model.)

m: Nnqms, PEYEHS co, mom-mine" msuwowu, u. c.

STATES PATENT OFFICE AARON Z. SAVAGE, OF CANOE STATION, ALABAMA;

BORING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 657,835, dated September 1 1, 1900.

Application filed January 31, 1900. Serial No. 3,540. kllo model.)

To all whom it may concern:

Be it known that I, AARON Z. SAVAGE, a citizen of the United States, residing at Canoe Station, in the county of Escambia and State of Alabama, have invented new and useful Improvements in Boring-Machines, of which the following is a specification.

This invention relates to boring-machines, and is especially designed for boring stumps in order that the latter may be readily burned in preparing farm-lands; and it has for its object to provide a boring-machine of the character referred to which shall be strong and durable and at the same time light and portable and which shall be simple in construction and effective in operation.

To these ends myinvention consists in the features and in the construction, combination, and arrangement of parts hereinafter described, and particularly pointed ontin the claims following the description, reference being had to the accompanying drawings, forminga part of this specification, wherein- Figure l is a side elevation of my improved boring-machine, and Fig. 2 is a front elevation of the same.

Referring to the drawings, the numeral 1 indicates a spindle provided at'one end with a thimble 2, adapted to receive the shank of the auger 3, which is held in place in the thimble by a set-screw4. The spindle is arranged to rotate in a cross-coupling 5, the laterally-projecting ends 6 of which are fitted in elbows 7. Rotatably arranged on the projecting members (5 of the cross-coupling are two sleeves 8, to which are attached the upper ends of two rods 9, which constitute legs and operate to support the boring-machine. The rods or legs 9 are connected together by a brace-rod l0. Screwedintothe pipe-elbows 7 are two tubular sections 11, and screwed over said tubular sections are T-couplings 12, which form bearings, in whichis journaled a tubular shaft 13. On the shaft 13 is fixed a beveled gear-wheel 14, which gears with a similar gear-wheel l5, fixed on the upper end of the spindle 1. Fixed on the opposite ends of the tubular shaft 13 are cranks, each comprising two pipe-elbows 16 and 17, united by a section of pipe 18, the elbows 16 being screwed over the ends of the shaft 13, and fitted in the elbows 17 are rotatable knobs or handles 19 of ordinary construction.

The entire machine, excepting the gearing and legs, is formed from piping or tubing, thereby combining great strength with lightness and permitting the machine to be man ufactured at small cost.

In operating the machine the latter is supported in an approximately-upright position on the legs 9, but leaning toward the stump being bored. By turning the cranks the tubular shaft 13 is rotated and through the gears 14 and 15 rotates the spindle 1 and the auger 3 carried thereby. By rotatably arranging the sleeves 8 on the ends 6 of the cross-coupling the machine may be moved backward and forward at will and the auger set atanydesired inclination. In boringholes in stumps the anger is set to bore the holes ata downward inclination to form draft-channels in'which lire is placed to burn out and destroy the stump in a well-known manner.

While my improved machine is particularly designed for boring stumps, it may also be employed for other purposes and especially where it is desired to bore holes at an incline, and by arranging the angel-spindle in a swiveled hearing, as shown, the machine may be reversedthat is to say, the auger may be turned vertically upward so as to bore overhead;

Having described my invention, what I claim is 1. In a boring-machine, the combination with the tubular frame, of the cross-coupling carried thereby, the spindle journaled in the cross-coupling, a crank-shaft journaled in the frame at a right angle to the spindle, gearing for transmitting motion from the crank-shaft to the spindle, an anger fitted in the spindle, and a support swiveled upon the laterallyprojecting arms of the cross-coupling, substantially as described.

2. In a boring-machine, the combination with the cross-coupling, of sleeves swiveled on the laterally-projecting ends of said coupling, legs attached to said sleeves, a spindle journaled in the cross-coupling, an anger fitted in the spindle, bearings supported by the cross-coupling, a tubular crank-shaft j0urnaled in said bearings, and gearing for transinitting motion from the crank-shaft to said spindle, substantially as described.

3. In a boring-machine, the combination with the tubular frame comprising the crosscoupling, the elbows fitted on the laterallyprojecting ends of the cross-coupling and the T-conplings carried by said elbows, of the tubular crank-shaft journaled in said T- couplings, the spindle journaled in said crosscoupling, gearing for transmitting movement from the crank-shaft to the spindle, an anger fitted in the spindle, and a support for the tubular frame, substantially described.

4. In a boring-machine, the combination with the tubular frame comprising the crosscoupling, the elbows fitted on the laterally projecting ends of the cross-coupling, and the T-couplings carried by said elbows, of the crank-shaft journaled in said T- couplings and comprising the central tubing, elbows fixed on the ends thereof, tubular sections fitted in said elbows, elbows fitted on the ends of said sections, handles fitted in the elbows, a spindle jonrnaled inthe cross-coupling, gearing for transmitting motion from the crankshaft to the spindle, and an anger fitted in the spindle, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

AARON Z. SAVAGE.

Witnessesi PEARL B. McGoWAN, WILLIAM J. Mo'OANTs' 

